gMFSK and my wonky PTT driver

gMFSK and my wonky PTT driver

[Jonathan Lassoff]

I started to use gMFSK and I wanted it to get working with the
parallel port PTT driver I made for soundmodem. The problem that I am
having is that when I modprobe in parport, parport_pc, and lp and go
to gMFSK and ask it to use /dev/lp0 it says that it isn't either a
serial or parallel port. I'm not really sure what the means in this
context, or how it checks past just seeing that it is a device. I can
see lp0 in /dev and see that it is a character special device. I'm
also concerned that it will just set the DCD or RTS high instead of
the first data port based on the tick boxes in the config. Soundmodem
has it setup to use the data pin. I have that driving a transistor
that closes a pin to ground to put the TX on. Any ideas on this setup?

Jonathan Lassoff (KG6THI)

Re: gMFSK and my wonky PTT driver

[Luc Langehegermann]

> I started to use gMFSK and I wanted it to get working with the
> parallel port PTT driver I made for soundmodem. The problem that I am
> having is that when I modprobe in parport, parport_pc, and lp and go
> to gMFSK and ask it to use /dev/lp0 it says that it isn't either a
> serial or parallel port. I'm not really sure what the means in this
> context, or how it checks past just seeing that it is a device. I can
> see lp0 in /dev and see that it is a character special device. I'm
> also concerned that it will just set the DCD or RTS high instead of
> the first data port based on the tick boxes in the config. Soundmodem
> has it setup to use the data pin. I have that driving a transistor
> that closes a pin to ground to put the TX on. Any ideas on this setup?
>
> Jonathan Lassoff (KG6THI)

Hello Jonathan,

lp stands for Line Printer, not what you want. The right device is
probably /dev/parport0

73, Luc, LX2GT

Re: gMFSK and my wonky PTT driver

[Luc Langehegermann]

Hello Jonathan,

>
> Why doesn't it exist? I tried to use "MAKEDEV parport" to create the
> special devices, but it didn't actually make them. I'm still a little
> confused why devices show up /dev. Do kernel modules (built-in or
> otherwise) make them?

That depends on your system. On mine, loading modules does create devices.
the proper module you need to load is probably ppdev.

>
> Jonathan Lassoff (KG6THI)
>

Luc

Re: gMFSK and my wonky PTT driver

[Jonathan Lassoff]

On 19/07/05, Luc Langehegermann <luc2@lx2gt.lu> wrote:
> Hello Jonathan,
> That depends on your system. On mine, loading modules does create devices.
> the proper module you need to load is probably ppdev.
>
> Luc

Thanks Luc. That definetly got /dev/parport0 to show up. But, when I
started gMFSK, I found that I had to be root for permissions. So, I
started as root and then when I tested the PTT, I get a popup that
says: "set_ptt: ioctl: Invalid argument" So, I then took a look in the
kernel messages and got: "ppdev0: claim the port first" Does anyone
have an idea as to what is going on?

Jonathan Lassoff (KG6THI)

Re: gMFSK and my wonky PTT driver

[Jonathan Lassoff]

On 21/07/05, Luc Langehegermann <luc2@lx2gt.lu> wrote:
> Jonathan, have you actually checked if mfsk does support PTT via the
> Parport. The error message sounds for me such way, that mfsk doesn't
> support parport keying!?!?
> 
> 73, Luc

Well, it's one of the compiled-in options in the drop-down list. Based
on this, I'd imagine that it's supported.

Jonathan Lassoff (KG6THI)

Re: gMFSK and my wonky PTT driver

[Joop Stakenborg]

>
> Thanks Luc. That definetly got /dev/parport0 to show up. But, when I
> started gMFSK, I found that I had to be root for permissions. So, I
> started as root and then when I tested the PTT, I get a popup that
> says: "set_ptt: ioctl: Invalid argument" So, I then took a look in the
> kernel messages and got: "ppdev0: claim the port first" Does anyone
> have an idea as to what is going on?
>

Just an idea. Is the lp module loaded?
You must unload it with 'rmmod lp'.

> Jonathan Lassoff (KG6THI)
>

Joop PG4I

Re: gMFSK and my wonky PTT driver

[Tomi Manninen]

On Thu, 21 Jul 2005, Jonathan Lassoff wrote:

> On 21/07/05, Luc Langehegermann <luc2@lx2gt.lu> wrote:
>> Jonathan, have you actually checked if mfsk does support PTT via the
>> Parport. The error message sounds for me such way, that mfsk doesn't
>> support parport keying!?!?
>
> Well, it's one of the compiled-in options in the drop-down list. Based
> on this, I'd imagine that it's supported.

It's been a while since I tested this functionality but it certainly did 
work at some point. And without root priviledges if my memory serves 
(running gMFSK as root would be an unacceptable solution anyway...)

-- 
Tomi Manninen / OH2BNS / KP20JF74

RE: gMFSK and my wonky PTT driver

[Claudieni]

Hi Jonathan 


Did you tried to load the module with those parameters?



insmod parport

insmod parport_pc io=0x378 irq=7 



Claudinei
Pu2nzw